"I end the interview the way everybody ends their meetings with Hawke, by telling him what they should do with the third Before Sunrise film, currently at the planning stage. Everyone does this, apparently: journalists, fans, directors, strangers.

"I'll go meet some fancypants director for a movie. They'll go, 'Oh this guy wants to meet you for this, that, the other.' I go, 'OK, I'll meet the guy.' We start talking about their film for a bit and then they go: 'I know what the third film should be.' And then he tells me. It's flattering, but we have to just tune it out and figure out what we want to say."

What does he want to say? "One of the things I want to get into the film is an acknowledgement of – and this is everybody's struggle – how do you keep your innocence alive? How do you keep your sense of romance alive, your sense of joy alive? But match it with realism, to get rid of all the fake naivety. To see the world for what it is. It's a very difficult aspect of life. What do you do?"

Here's another one. They're in Finland and have become snowed in at a cabin ...